Реферат

These test methods describe the procedures for the chemical analysis of industrial metal cleaning compositions in solid, paste, or liquid form. These cleaning compositions may contain caustic alkalies, silicates, phosphates, chromates, carbonates, bicarbonates, borates, sulfates, sulfites, nitrates, chlorides, soaps, rosin, sulfonated wetting agents, anti-foaming agents, organic bases, organic solvents, organic coupling agents, and sometimes inorganic acid salts or organic acids. Percentage of total sodium oxide, percentage of potassium oxide, percentage of free sodium hydroxide, percentage of water, percentage of losses, percentage of matter insoluble in alcohol, percentage of fatty acids, percentage of rosin, percentage of synthetic detergent or wetting agent, percentage of silica, percentage of phosphorus pentoxide, percentage of carbon dioxide, percentage of sodium chloride, percentage of sodium sulfate, and percentage of volatile hydrocarbons test methods shall be performed to conform with the specified requirements.

Область применения

1.1 These test methods describe the procedures for the chemical analysis of industrial metal cleaning compositions in solid, paste, or liquid form. These cleaning compositions may contain caustic alkalies, silicates, phosphates, chromates, carbonates, bicarbonates, borates, sulfates, sulfites, nitrates, chlorides, soaps, rosin, sulfonated wetting agents, anti-foaming agents, organic bases, organic solvents, organic coupling agents, and sometimes inorganic acid salts or organic acids. Occasionally, such cleaning compositions may contain sulfonated oils; in such cases, reference should be made to Method D 500. The examination under a low power microscope or magnifying glass, supplemented by a few qualitative tests, will often indicate the number of components and their identity.

1.2 The analytical methods appear in the following order:

SectionPreparation of Sample4Total Alkalinity as Na2O5-8Total Fatty Acids (and Rosin)9 and 10Na2O Combined with Fatty Acids (and Rosin)11 and 12Anhydrous Soap13-Rosin (McNicoll Test Method):Qualitative14 and 15Quantitative16-19Total Silica Calculated as SiO₂20-23Phosphates:Qualitative24 and 25Quantitative26-18Combined Sodium and Potassium Oxides34-37Chlorides38-40Sulfates41-43Water, Distillation Test Method44-47Carbon Dioxide by Evolution-Absorption Test Method48-52Loss at 105C53 and 54Total Matter Insoluble in Alcohol55-57Free Alkali58-60Synthetic Detergent or Wetting Agent61 and 62Volatile Hydrocarbons63-67Loss on Ignition68 and 69Report70 and 71

1.3This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Material Safety Data Sheets are available for reagents and materials. Review them for hazards prior to usage. See for a specific hazards statement.